Cenozoic Mg/Ca ratios in benthic foraminiferal calcite with BWT and sea ice volume reconstruction

A deep-sea temperature record for the past 50 million years has been produced from the magnesium/calcium ratio (Mg/Ca) in benthic foraminiferal calcite. The record is strikingly similar in form to the corresponding benthic oxygen isotope (δ18O) record and defines an overall cooling of about 12°C in...

Full description

Bibliographic Details
Main Authors: Lear, Caroline H, Elderfield, Henry, Wilson, Paul A
Format: Dataset
Language:English
Published: PANGAEA 2020
Subjects:
Cenozoic temperature ice volume Mg/Ca
Deep Sea Drilling Project
DSDP
Ocean Drilling Program
ODP
Antarctic
Antarc*
Sea ice
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.913867
https://doi.org/10.1594/PANGAEA.913867
id ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.913867
record_format openpolar
spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.913867 2023-05-15T14:04:57+02:00 Cenozoic Mg/Ca ratios in benthic foraminiferal calcite with BWT and sea ice volume reconstruction Lear, Caroline H Elderfield, Henry Wilson, Paul A MEDIAN LATITUDE: -21.603350 * MEDIAN LONGITUDE: -44.561787 * SOUTH-BOUND LATITUDE: -64.517000 * WEST-BOUND LONGITUDE: -133.309500 * NORTH-BOUND LATITUDE: 3.719100 * EAST-BOUND LONGITUDE: 3.100150 * DATE/TIME START: 1980-05-06T00:00:00 * DATE/TIME END: 1994-02-21T10:30:00 2020-03-24 application/zip, 5 datasets https://doi.pangaea.de/10.1594/PANGAEA.913867 https://doi.org/10.1594/PANGAEA.913867 en eng PANGAEA Lear, Caroline H; Elderfield, Henry; Wilson, Paul A (2000): Cenozoic Deep-Sea Temperatures and Global Ice Volumes from Mg/Ca in Benthic Foraminiferal Calcite. Science, 287(5451), 269-272, https://doi.org/10.1126/science.287.5451.269 https://doi.pangaea.de/10.1594/PANGAEA.913867 https://doi.org/10.1594/PANGAEA.913867 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Cenozoic temperature ice volume Mg/Ca Deep Sea Drilling Project DSDP Ocean Drilling Program ODP Dataset 2020 ftpangaea https://doi.org/10.1594/PANGAEA.913867 https://doi.org/10.1126/science.287.5451.269 2023-01-20T07:34:31Z A deep-sea temperature record for the past 50 million years has been produced from the magnesium/calcium ratio (Mg/Ca) in benthic foraminiferal calcite. The record is strikingly similar in form to the corresponding benthic oxygen isotope (δ18O) record and defines an overall cooling of about 12°C in the deep oceans with four main cooling periods. Used in conjunction with the benthic δ18O record, the magnesium temperature record indicates that the first major accumulation of Antarctic ice occurred rapidly in the earliest Oligocene (34 million years ago) and was not accompanied by a decrease in deep-sea temperatures. Dataset Antarc* Antarctic Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Antarctic ENVELOPE(-133.309500,3.100150,3.719100,-64.517000)
institution Open Polar
collection PANGAEA - Data Publisher for Earth & Environmental Science
op_collection_id ftpangaea
language English
topic Cenozoic temperature ice volume Mg/Ca
Deep Sea Drilling Project
DSDP
Ocean Drilling Program
ODP
spellingShingle Cenozoic temperature ice volume Mg/Ca
Deep Sea Drilling Project
DSDP
Ocean Drilling Program
ODP
Lear, Caroline H
Elderfield, Henry
Wilson, Paul A
Cenozoic Mg/Ca ratios in benthic foraminiferal calcite with BWT and sea ice volume reconstruction
topic_facet Cenozoic temperature ice volume Mg/Ca
Deep Sea Drilling Project
DSDP
Ocean Drilling Program
ODP
description A deep-sea temperature record for the past 50 million years has been produced from the magnesium/calcium ratio (Mg/Ca) in benthic foraminiferal calcite. The record is strikingly similar in form to the corresponding benthic oxygen isotope (δ18O) record and defines an overall cooling of about 12°C in the deep oceans with four main cooling periods. Used in conjunction with the benthic δ18O record, the magnesium temperature record indicates that the first major accumulation of Antarctic ice occurred rapidly in the earliest Oligocene (34 million years ago) and was not accompanied by a decrease in deep-sea temperatures.
format Dataset
author Lear, Caroline H
Elderfield, Henry
Wilson, Paul A
author_facet Lear, Caroline H
Elderfield, Henry
Wilson, Paul A
author_sort Lear, Caroline H
title Cenozoic Mg/Ca ratios in benthic foraminiferal calcite with BWT and sea ice volume reconstruction
title_short Cenozoic Mg/Ca ratios in benthic foraminiferal calcite with BWT and sea ice volume reconstruction
title_full Cenozoic Mg/Ca ratios in benthic foraminiferal calcite with BWT and sea ice volume reconstruction
title_fullStr Cenozoic Mg/Ca ratios in benthic foraminiferal calcite with BWT and sea ice volume reconstruction
title_full_unstemmed Cenozoic Mg/Ca ratios in benthic foraminiferal calcite with BWT and sea ice volume reconstruction
title_sort cenozoic mg/ca ratios in benthic foraminiferal calcite with bwt and sea ice volume reconstruction
publisher PANGAEA
publishDate 2020
url https://doi.pangaea.de/10.1594/PANGAEA.913867
https://doi.org/10.1594/PANGAEA.913867
op_coverage MEDIAN LATITUDE: -21.603350 * MEDIAN LONGITUDE: -44.561787 * SOUTH-BOUND LATITUDE: -64.517000 * WEST-BOUND LONGITUDE: -133.309500 * NORTH-BOUND LATITUDE: 3.719100 * EAST-BOUND LONGITUDE: 3.100150 * DATE/TIME START: 1980-05-06T00:00:00 * DATE/TIME END: 1994-02-21T10:30:00
long_lat ENVELOPE(-133.309500,3.100150,3.719100,-64.517000)
geographic Antarctic
geographic_facet Antarctic
genre Antarc*
Antarctic
Sea ice
genre_facet Antarc*
Antarctic
Sea ice
op_relation Lear, Caroline H; Elderfield, Henry; Wilson, Paul A (2000): Cenozoic Deep-Sea Temperatures and Global Ice Volumes from Mg/Ca in Benthic Foraminiferal Calcite. Science, 287(5451), 269-272, https://doi.org/10.1126/science.287.5451.269
https://doi.pangaea.de/10.1594/PANGAEA.913867
https://doi.org/10.1594/PANGAEA.913867
op_rights CC-BY-4.0: Creative Commons Attribution 4.0 International
Access constraints: unrestricted
info:eu-repo/semantics/openAccess
op_rightsnorm CC-BY
op_doi https://doi.org/10.1594/PANGAEA.913867
https://doi.org/10.1126/science.287.5451.269
_version_ 1766276420555767808

Similar Items